Yankees starting pitcher David Phelps delivers against the Baltimore Orioles in the first inning. (June 29, 2013) Photo Credit: AP

Another day, another disabled Yankee. This time it is pitcher David Phelps, who has developed what manager Joe Girardi called "a real slight, slight forearm strain. Not the ligament. But red flags always go up, so we decided to shut him down."

Phelps had mentioned discomfort in his pitching arm after being removed with one out in the seventh inning in Thursday's 9-5 victory over the Minnesota Twins, in which he allowed eight hits and four runs and got the win to move to 6-5. He underwent an MRI on Friday.

The 18th Yankee to spend time on the disabled list this season, Phelps is expected to resume throwing in 10 days. "There were discussions of just skipping him a start," Girardi said. "Instead, we're just putting him on the DL, seeing we have the All-Star break [July 15-18] on our side. Making sure he's healthy."

Girardi, meanwhile, adjusted his pitching rotation after Hiroki Kuroda, whose 2.95 earned run average is the best among Yankees starters, experienced no more trouble with a tightness in his left hip. Kuroda (7-6) will start Sunday's game against the Orioles, pushing Phil Hughes (4-7, 4.55) to Monday night against the Royals.

Kuroda had felt "strong tightness" after his previous start last Sunday in Baltimore, a 4-2 loss.

Wells works out at first

Outfielder Vernon Wells, who was used at third base for one inning earlier this season, took ground balls at first Saturday. "It could be something we mess around with," Girardi said. "We're in the midst of 20 in a row and Lyle [Overbay] has played basically every day. So we're looking at some options."